Classifying and Diagnosing 199 Impacted Permanent Using Cone Beam Computed Tomography
Grasping the position of embedded teeth in jaw bone and their spatial relationship with neighboring anatomical structures accurately is the foundation of orthodontic and maxillofacial surgical treatments. Cone beam computed tomography (CBCT), a newly developed imaging technique, which produces high definition and high resolution three-dimensional volumetric images, can provide accurate dynamic 3D images and six-surfaces visual angle for locating embedded teeth to get intuitive fault images in comparison with conventional CT. CBCT is being used in the practice of oral and maxillofacial radiology with increasing frequency to make up the shortcomings of traditional plane images. The purpose of this prospective study was to use CBCT to locate 199 impacted teeth of 103 patients, and make a classification.
KeywordsEmbedded teeth Cone beam CT Classification Diagnosis Orthodontics
This study was funded by Shandong Provincial Educational, Scientific and Cultural Special Subject (2011107).
- 3.Cantelmi P, Singer SR, Tamari K (2010) Dental caries in an impacted mandibular second molar: using cone beam computed tomography to explain inconsistent clinical and radiographic findings [J]. Quintessence Int 41(8):627–630Google Scholar
- 4.Peck S, Peck L, Kataja M (1994) The palatally displaced canine as a dental anomaly of genetic origin [J]. Angle Orthod 64(4):249–256Google Scholar
- 5.Moyer RE (1988) Handbook of Orthodontics, 4th edn. Year Book Medical, ChicagoGoogle Scholar
- 6.Witsenburg B, Boering G (1981) Eruption of impacted permanent upper incisors after removal of super numeraryteeth. Int J Oral Surg 10(6):423–431Google Scholar
- 7.Geng F, Gao X (1995) The diagnosis and treatment of maxillary impacted central incisors. Orthodontics 2(1):25–26Google Scholar
- 8.Duncan WK, Ashrafi MH, Meister F (1983) Management of the unerupted maxillary anterior tooth. JADA 106(5):640–644Google Scholar
- 10.Xianglong Z (2000) Modern OrthodonticsDiagnostic Manual. Beijing Medical University Press, BeijingGoogle Scholar
- 11.Kerr WJ (1982) A migratory mandibular canine. Br J Orthod 9(2):111–112Google Scholar